(* Copyright (C) 2015-2016 Bloomberg Finance L.P.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * In addition to the permissions granted to you by the LGPL, you may combine
 * or link a "work that uses the Library" with a publicly distributed version
 * of this file to produce a combined library or application, then distribute
 * that combined work under the terms of your choosing, with no requirement
 * to comply with the obligations normally placed on you by section 4 of the
 * LGPL version 3 (or the corresponding section of a later version of the LGPL
 * should you choose to use a later version).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *)

open Import

(** Define intermediate format to be serialized for cross module optimization *)

(** In this module,
    currently only arity information is  exported,

    Short term: constant literals are also exported

    Long term:
    Benefit? since Google Closure Compiler already did such huge amount of work
    TODO: simple expression, literal small function  can be stored,
    but what would happen if small function captures other environment
    for example

    {[
      let f  = fun x -> g x
    ]}

    {[
      let f = g
    ]}
*)

type arity = Single of Lam_arity.t | Submodule of Lam_arity.t array

type cmj_value = {
  arity : arity;
  persistent_closed_lambda : (Lam.t * Lam_var_stats.t Ident.Map.t) option;
      (* Either constant or closed functor *)
}

type keyed_cmj_value = {
  name : string;
  arity : arity;
  persistent_closed_lambda : (Lam.t * Lam_var_stats.t Ident.Map.t) option;
}

type t = {
  values : keyed_cmj_value array;
  pure : bool;
  package_spec : Js_packages_info.t;
  case : Js_packages_info.file_case;
  delayed_program : J.deps_program;
}

val make :
  values:cmj_value String.Map.t ->
  effect_:string option ->
  package_spec:Js_packages_info.t ->
  case:Js_packages_info.file_case ->
  delayed_program:J.deps_program ->
  t

val query_by_name : t -> string -> keyed_cmj_value
val single_na : arity
val from_file : string -> t

(* Note writing the file if its content is not changed *)
val to_file : string -> t -> unit

type cmj_load_info = {
  cmj_table : t;
      (* TODO(anmonteiro): re-enable for es6-global support *)
      (* package_path : path; *)
}

val load_unit : string -> cmj_load_info
